A strap-type compression tourniquet

Abstract

The application discloses a backband type compression tourniquet, and aims to solve the technical problems that current tourniquets cannot slow down the blood flow speed at the wound of a patient, the patient feels more pain during hemostasis, and the tourniquet is easily unevenly stressed when being installed on the human body of the patient, thereby causing the patient to feel uncomfortable, and the structure comprises a pressing device and a hemostasis device, the pressing device comprises a supporting plate and a bandage, a limiting hole is formed in the middle of the supporting plate, the hemostasis device comprises a spherical compression pad, a knob and a rotating rod, a limiting plate is installed at the bottom end of the knob, the limiting plate is installed in a limiting groove, the spherical compression pad is fixedly connected to one end of the rotating rod, and a blood cooling device is installed on the spherical compression pad. The application realizes cooling of the wound of the patient, slows down the blood flow speed at the wound of the patient, and reduces the pain of the patient during hemostasis.

Description

Technical Field

[0001] This invention relates to the field of tourniquet technology, specifically a back strap type compression tourniquet. Background Technology

[0002] In emergency situations involving severe bleeding, tourniquets are usually a simple and effective method of stopping bleeding. They achieve hemostasis by compressing blood vessels to block blood flow. However, if used improperly or for too long, tourniquets can cause ischemia and necrosis of distal limbs. Therefore, tourniquets need to be loosened after a period of time to prevent necrosis of distal limbs. A shoulder strap type digital display tourniquet is recommended.

[0003] In the process of developing the invention, the inventors discovered that the existing technology has at least the following unresolved problems: Traditional tourniquets cannot slow down blood flow at the patient's wound, resulting in significant pain for the patient during hemostasis; furthermore, uneven force distribution when applying the tourniquet can cause discomfort; and it is not convenient to use. Therefore, a new technical solution is needed to address these issues. Summary of the Invention

[0004] The purpose of this invention is to provide a strap-type compression tourniquet to solve the technical problems of current tourniquets failing to slow down blood flow at the patient's wound, causing significant pain to the patient during hemostasis, and causing discomfort to the patient due to uneven force when the tourniquet is installed on the patient's body.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a strap-type compression tourniquet, comprising a pressure device and a hemostatic device. The pressure device includes a support plate and a strap. A limiting hole is formed in the middle of the support plate. The hemostatic device includes a spherical compression pad, a knob, and a rotating rod. A limiting plate is installed at the bottom of the knob. The limiting plate is installed in a limiting groove. The spherical compression pad is fixedly connected to one end of the rotating rod. A blood cooling device is installed on the spherical compression pad. The blood cooling device includes a metal plate, a semiconductor cooling chip, a cooling chamber, a heat sink, and a cooling fan. The metal plate is connected to the heat sink through the semiconductor cooling chip. The cooling fan is installed at the other end of the heat sink. The semiconductor cooling chip, the heat sink, and the cooling fan are electrically connected to a control mechanism through conductive wires. Pressure sensors are installed on both sides of the bottom of the cooling chamber.

[0006] In a preferred embodiment of the present invention, the support plate has three locking holes at its edge, and three straps are provided, with one end of each strap fitting into the locking hole.

[0007] In a preferred embodiment of the present invention, three abutment posts are connected to the bottom edge of the support plate via three threaded joints, and the other end of each abutment post is connected to a threaded adjustment post via a threaded groove. A stabilizing pad is installed at the other end of each threaded adjustment post.

[0008] In a preferred embodiment of the present invention, one end of the three threaded joints is connected to the interior of the support plate by threads, the other end of the three threaded joints is fixedly connected to one end of the three abutment posts, the threaded groove is located inside the other end of the abutment post, one end of the threaded adjusting post is connected to the interior of the threaded groove by threads, and the other end of the threaded adjusting post is fixedly connected to one end of the stabilizing pad.

[0009] In a preferred embodiment of the present invention, the limiting groove is located around the limiting hole and inside the support plate. The limiting plate is rotatably connected inside the limiting groove. One end of the knob is fixedly connected to one end of the limiting plate. One end of the rotating rod is threaded to the center of the knob. The other end of the rotating rod is slidably connected inside the limiting hole.

[0010] In a preferred embodiment of the present invention, one end of the metal plate is located inside the cooling chamber, and the other end of the metal plate is sealed and connected to the inside of the spherical pressure pad and is flush with its upper surface. The cooling end of the semiconductor refrigeration chip is bonded to the other end of the metal plate with silicone, and the other end of the semiconductor refrigeration chip is bonded to one end of the heat sink with silicone. One end of the cooling fan abuts against the other end of the heat sink and is fixedly connected to the spherical pressure pad with bolts.

[0011] In a preferred embodiment of the present invention, the conductive wire is inserted inside the rotating rod, and its two ends are electrically connected to the semiconductor cooling chip, the heat sink, the cooling fan and the control mechanism, respectively.

[0012] In a preferred embodiment of the present invention, the control mechanism is fixedly connected to one side of the upper surface of the support plate, an OLED display screen is mounted on the upper surface of the control mechanism, and control buttons are mounted on one side of the OLED display screen.

[0013] In a preferred embodiment of the present invention, the pressure sensor is fixedly connected inside the spherical pressure pad with its detection end facing downward, and the pressure sensor is separated from the cooling chamber.

[0014] In a preferred embodiment of the present invention, the support plate is made of transparent PC or ABS material, the spherical compression pad is made of silicone material, and the strap is made of nylon material.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] When using a tourniquet to stop bleeding on a patient, the present invention first controls the operation of a semiconductor cooling chip, a heat sink, and a cooling fan by a control mechanism. At this time, the cooling end of the semiconductor cooling chip cools the water in the cooling chamber through a metal plate. During this process, the heat sink absorbs the heat from the heat-releasing end of the semiconductor cooling chip, and the cooling fan cools it down. Then, the spherical compression pad comes into contact with the patient's wound, thereby cooling the patient's wound, slowing down the blood flow at the wound site, and reducing the patient's pain during hemostasis.

[0017] Next, adjust the stabilizing pads on the three abutment columns according to the position of the tourniquet on the patient's body. At this time, the operator rotates the stabilizing pads so that the threaded adjusting column rotates inside the threaded groove, so that the support plate that contacts the stabilizing pads on the patient's body can be kept parallel to the patient's body. This ensures that the tourniquet is applied evenly to the patient's body and avoids the tourniquet being applied to a single point on the patient's body, which could cause discomfort to the patient.

[0018] Next, place the spherical compression pad on the patient's wound, and then let the limiting plate on the knob rotate inside the limiting groove. During this process, the lever will move inside the limiting hole and drive the spherical compression pad to squeeze the patient's wound, thereby stopping the bleeding and improving the convenience of using the tourniquet.

[0019] The pressure is applied by a pressurizing device until the pressure value of the spherical silicone tube compressing the wound reaches the clinically required value. During this process, a pressure sensor monitors the pressure around the patient's wound in real time. After the set time is reached, a buzzer alarm reminds the patient to remove the tourniquet and restore normal blood supply. The pressure and time are displayed on the screen in real time, enabling precise pressure measurement, relieving the patient's pain, and greatly aiding medical treatment. It is suitable for patients with minor or massive bleeding, facilitates its widespread use in surgery and internal medicine, improves treatment efficiency, and buys doctors time for surgery. Attached Figure Description

[0020] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the blood cooling device of the present invention;

[0023] Figure 3 This is a cross-sectional view of the counterweight column of the present invention;

[0024] Figure 4 This is a front view of the knob of the present invention;

[0025] Figure 5 This is a cross-sectional view of the spherical compression pad of the present invention;

[0026] Figure 6 This is a schematic diagram of the support plate structure of the present invention;

[0027] Figure 7 This is a schematic diagram illustrating the operation of the present invention;

[0028] In the diagram: 1. Support plate; 11. Strap; 12. Limiting hole; 13. Spherical compression pad; 14. Knob; 15. Rotary rod; 16. Limiting plate; 17. Limiting groove; 18. Metal plate; 19. Semiconductor cooling chip;

[0029] 20. Cooling chamber; 21. Heat sink; 22. Cooling fan; 23. Control mechanism; 24. Pressure sensor; 25. Locking hole; 26. Threaded connector; 27. Support post; 28. Threaded groove; 29. ​​Threaded adjusting post;

[0030] 30. Stabilizing pad; 31. OLED display screen; 32. Control buttons; 33. Conductive wire. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0032] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0033] Example 1: A strap-type compression tourniquet, see [link to example]. Figures 1 to 7The device includes a pressure device and a hemostatic device. The pressure device includes a support plate 1 and a strap 11. A limiting hole 12 is provided in the middle of the support plate 1. The hemostatic device includes a spherical compression pad 13, a knob 14, and a rotating rod 15. A limiting plate 16 is installed at the bottom end of the knob 14. The limiting plate 16 is installed in a limiting groove 17. The spherical compression pad 13 is fixedly connected to one end of the rotating rod 15. The limiting groove 17 is located outside the limiting hole 12 and inside the support plate 1. The limiting plate 16 is rotatably connected inside the limiting groove 17. One end of the knob 14 is fixedly connected to the limiting plate 16. One end of the 6 is connected to the center of the knob 14 via a thread, and the other end of the 15 is slidably connected inside the limiting hole 12. When the patient's wound is hemostatic, the ball-shaped compression pad 13 is first placed on the wound, and then the limiting plate 16 on the knob 14 is rotated inside the limiting groove 17. During this process, the 15 will move inside the limiting hole 12 and drive the ball-shaped compression pad 13 to squeeze the wound, thereby stopping the bleeding and improving the convenience of using the tourniquet.

[0034] A blood cooling device is installed on the spherical compression pad 13. The blood cooling device includes a metal plate 18, a thermoelectric cooler 19, a cooling chamber 20, a heat sink 21, and a cooling fan 22. The metal plate 18 is connected to the heat sink 21 via the thermoelectric cooler 19. The cooling fan 22 is installed at the other end of the heat sink 21. The thermoelectric cooler 19, the heat sink 21, and the cooling fan 22 are electrically connected to a control mechanism 23 via conductive wires 33. Pressure sensors are installed on both sides of the bottom of the cooling chamber 20. One end of the metal plate 18 is located inside the cooling chamber 20, and the other end of the metal plate 18 is sealed and connected to the inside of the spherical compression pad 13, flush with its upper surface. The cooling end of the thermoelectric cooler 19 is bonded to the other end of the metal plate 18 with silicone, and the other end of the thermoelectric cooler 19 is bonded to one end of the heat sink 21 with silicone. One end of the cooling fan 22 abuts against the other end of the heat sink 21 and is connected to the spherical compression pad 13 by bolts. The ball-shaped pressure pad 13 is fixedly connected, and the conductive wire 33 is inserted inside the rotating rod 15. Its two ends are electrically connected to the semiconductor cooling chip 19, the heat sink 21, the cooling fan 22, and the control mechanism 23, respectively. The pressure sensor 24 is fixedly connected inside the ball-shaped pressure pad 13 with its detection end facing downward. The pressure sensor 24 is separated from the cooling chamber 20. When a tourniquet is used to stop bleeding on a patient, the control mechanism 23 first controls the semiconductor cooling chip 19, the heat sink 21, and the cooling fan 22 to operate. At this time, the cooling end of the semiconductor cooling chip 19 cools the water in the cooling chamber 20 through the metal plate 18. During this process, the heat sink 21 absorbs the heat from the heat-releasing end of the semiconductor cooling chip 19, and then the cooling fan 22 cools it down. Then the ball-shaped pressure pad 13 comes into contact with the patient's wound, thereby cooling the patient's wound, slowing down the blood flow at the wound, and reducing the patient's pain during hemostasis.

[0035] Specifically, the support plate 1 has three locking holes 25 at its edge, and three straps 11 are provided. One end of each strap 11 is fitted into the locking hole 25, which improves the stability of the tourniquet when it is installed on the patient's body.

[0036] Furthermore, three abutment posts 27 are connected to the bottom edge of the support plate 1 via three threaded joints 26. The other end of each abutment post 27 is connected to a threaded adjusting post 29 via a threaded groove 28. A stabilizing pad 30 is installed at the other end of each threaded adjusting post 29. One end of each of the three threaded joints 26 is threaded into the interior of the support plate 1, and the other end of each threaded joint 26 is fixedly connected to one end of each of the three abutment posts 27. The threaded groove 28 is located inside the other end of each abutment post 27. One end of each threaded adjusting post 29 is threaded into the interior of the threaded groove 28. The other end of the column 29 is fixedly connected to one end of the stabilizing pad 30. When the tourniquet is used, the stabilizing pad 30 on the three abutting columns 27 is first adjusted according to the position of the tourniquet on the patient's body. At this time, the operator rotates the stabilizing pad 30, so that the threaded adjusting column 29 rotates inside the threaded groove 28, so that when the stabilizing pad 30 contacts the patient's body, the support plate 1 can remain parallel to the patient's body, thereby ensuring the uniformity of the force when the tourniquet is applied to the patient's body, and avoiding the phenomenon of the tourniquet being applied to a certain point on the patient's body, which would cause discomfort to the patient.

[0037] Furthermore, the control mechanism 23 is fixedly connected to one side of the upper surface of the support plate 1. An OLED display screen 31 is installed on the upper surface of the control mechanism 23, and a control button 32 is installed on one side of the OLED display screen 31, so that the operator can observe the patient's pressure status in real time through the OLED display screen 31.

[0038] It is worth noting that the support plate 1 is made of transparent PC or ABS material, the spherical compression pad 13 is made of silicone material, and the bandage 11 is made of nylon material, which improves the wear resistance and comfort of the tourniquet during use.

[0039] It should be noted that the control mechanism 23 includes a microcontroller (STC8 series), is battery powered, and displays the measured values ​​of the pressure sensor 24 inside the silicone pad in real time after processing through a set program. The processing time countdown is also displayed, and an alarm is triggered by a buzzer. First, the hemostatic device is fixed at the puncture site for hemostasis. It is operated by the control button 32. The pressure display range is 0-400 mmHg, and the time setting range is 0-600 min. The pressure device tightens the bandage 11 to compress the spherical silicone pad at the hemostatic position. When the required pressure is reached, the pressure is stopped. Press and hold the button for 5 seconds to start the countdown. The OLED display 31 displays the pressure and countdown time in real time. When the set time is reached, the buzzer sounds an alarm, reminding the patient to remove the tourniquet.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A shoulder strap type compression tourniquet, comprising a pressure application device and a hemostatic device, characterized in that: The pressurizing device includes a support plate (1) and a strap (11). A limiting hole (12) is opened in the middle of the support plate (1). The hemostatic device includes a spherical compression pad (13), a knob (14), and a rotating rod (15). A limiting plate (16) is installed at the bottom end of the knob (14). The limiting plate (16) is installed in a limiting groove (17). The spherical compression pad (13) is fixedly connected to one end of the rotating rod (15). A blood cooling device is installed on the spherical compression pad (13). The blood cooling device includes... It has a metal plate (18), a semiconductor cooling chip (19), a cooling chamber (20), a heat sink (21), and a cooling fan (22). The metal plate (18) is connected to the heat sink (21) through the semiconductor cooling chip (19). The cooling fan (22) is installed at the other end of the heat sink (21). The semiconductor cooling chip (19), the heat sink (21), and the cooling fan (22) are electrically connected to a control mechanism (23) through a conductive wire (33). Pressure sensors (24) are installed on both sides of the bottom of the cooling chamber (20). The limiting groove (17) is located around the limiting hole (12) and inside the support plate (1). The limiting plate (16) is rotatably connected inside the limiting groove (17). One end of the knob (14) is fixedly connected to one end of the limiting plate (16). One end of the rotating rod (15) is connected to the center of the knob (14) by a thread. The other end of the rotating rod (15) is slidably connected inside the limiting hole (12).

2. The tourniquet-type compression bandage according to claim 1, characterized in that: The support plate (1) has three locking holes (25) at its edge, and three straps (11) are provided, with one end of each strap (11) fitting into the locking hole (25).

3. The tourniquet-type compression bandage according to claim 1, characterized in that: The support plate (1) has three abutment posts (27) connected to the bottom edge by three threaded joints (26). The other end of the abutment post (27) is connected to a threaded adjustment post (29) by a threaded groove (28). The other end of the threaded adjustment post (29) is equipped with a stabilizing pad (30).

4. A shoulder strap type compression tourniquet according to claim 3, characterized in that: One end of each of the three threaded joints (26) is connected to the interior of the support plate (1) by threads, and the other end of each of the three threaded joints (26) is fixedly connected to one end of each of the three abutment posts (27). The threaded groove (28) is located inside the other end of the abutment post (27). One end of each threaded adjusting post (29) is connected to the interior of the threaded groove (28) by threads, and the other end of each threaded adjusting post (29) is fixedly connected to one end of the stabilizing pad (30).

5. A shoulder strap type compression tourniquet according to claim 1, characterized in that: One end of the metal plate (18) is located inside the cooling chamber (20), and the other end of the metal plate (18) is sealed and connected to the inside of the spherical pressure pad (13) and is flush with its upper surface. The cooling end of the semiconductor cooling chip (19) is bonded to the other end of the metal plate (18) with silicone. The other end of the semiconductor cooling chip (19) is bonded to one end of the heat sink (21) with silicone. One end of the cooling fan (22) abuts against the other end of the heat sink (21) and is fixedly connected to the spherical pressure pad (13) with bolts.

6. A shoulder strap type compression tourniquet according to claim 1, characterized in that: The conductive wire (33) is inserted inside the rotating rod (15), and its two ends are electrically connected to the semiconductor cooling chip (19), the heat sink (21), the cooling fan (22) and the control mechanism (23), respectively.

7. A shoulder strap type compression tourniquet according to claim 1, characterized in that: The control mechanism (23) is fixedly connected to one side of the upper surface of the support plate (1). An OLED display screen (31) is installed on the upper surface of the control mechanism (23), and a control button (32) is installed on one side of the OLED display screen (31).

8. A shoulder strap type compression tourniquet according to claim 1, characterized in that: The pressure sensor (24) is fixedly connected inside the spherical pressure pad (13), with its detection end facing downwards. The pressure sensor (24) is separated from the cooling chamber (20).

9. A shoulder strap type compression tourniquet according to claim 1, characterized in that: The support plate (1) is made of transparent PC or ABS material, the spherical compression pad (13) is made of silicone material, and the strap (11) is made of nylon material.

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